/*
* Copyright (c) 2008 - 2013 10gen, Inc. <http://10gen.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package com.tengen;
import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import com.mongodb.MongoClient;
import java.net.UnknownHostException;
import java.util.Random;
public class FindTest {
public static void main(String[] args) throws UnknownHostException {
MongoClient client = new MongoClient();
DB db = client.getDB("course");
DBCollection collection = db.getCollection("findTest");
collection.drop();
// insert 10 documents with a random integer as the value of field "x"
for (int i = 0; i < 10; i++) {
collection.insert(new BasicDBObject("x", new Random().nextInt(100)));
}
System.out.println("Find one:");
DBObject one = collection.findOne();
System.out.println(one);
System.out.println("\nFind all: ");
DBCursor cursor = collection.find();
try {
while (cursor.hasNext()) {
DBObject cur = cursor.next();
System.out.println(cur);
}
} finally {
cursor.close();
}
System.out.println("\nCount:");
long count = collection.count();
System.out.println(count);
}
}